refactor(frontend): api/components/pages 目录架构统一对齐菜单域 + 日志中心修复

1. 目录架构统一（API = components = 菜单域，一域一目录 + barrel）
   - log/ 提为独立顶层域（日志中心在菜单中与监控中心平级，不再塞在 monitor/）
   - task/ 拆分原 automation.ts → cron-job / script / remote-exec
   - aiops/ 合并 ai.ts + agentCli.ts → assistant + agent-cli
   - agent/ approval/ audit/ 提升为域目录
   - auth 拆分：authApi(认证自服务) + system/user.ts(userApi+ldapApi 管理端)
   - components/automation → components/task，菜单"自动化运维"→"作业任务"
   - pages/ 按域分子目录(approval/audit/monitor)，删孤儿 AuditPage.tsx
   - 所有 API 符号名不变，组件经 @/api 聚合引用，运行时行为零变化

2. Loki 查询无返回修复：aiops 容器 DNS 解析外网域名失败
   （宿主机 systemd-resolved 转发链路异常），docker-compose 显式配 dns 上游

3. ES 查询框布局：工具栏单行挤 7 控件(ES 多 150px 索引框)，拆两行——
   查询输入独占一行(+查询按钮)，次级控件换行 flex-wrap

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/components/monitor/log-center/UnifiedQueryPanel.tsx

@@ -11,7 +11,7 @@ import { LogClusterPanel } from './LogClusterPanel';
 import { SaveQueryDialog, SaveAlertDialog } from './SaveQueryDialog';
 import { QueryHistoryPanel } from './QueryHistoryPanel';
 import { LogAlertFromQueryDialog } from './LogAlertFromQueryDialog';
-import { logCenterApi, type LogDataSource } from '@/api/monitor/log-center';
+import { logCenterApi, type LogDataSource } from '@/api';
 import type { LogEngine, TimeRange, ResultTab, ViewMode, LogEntry, StatTable, LogCluster, QueryHistoryItem } from './types-v3';
 import { ENGINE_META, buildStatTableFromEntries, buildClustersFromEntries, extractFields, generateHistogramData, historyStorage } from './types-v3';
 import { useToast } from '@/hooks/use-toast';
@@ -280,8 +280,13 @@ export function UnifiedQueryPanel({ engine, onRuleCreated }: Props) {
             <span className="text-[11px] font-semibold" style={{ color: badge.dotColor }}>{badge.label}</span>
           </div>
           <SyntaxHighlightInput value={query} onChange={setQuery} engine={effEngine} placeholder={meta.queryPlaceholder} />
+          <button onClick={handleRun} disabled={loading || !currentSource} className="h-10 px-4 rounded text-xs font-medium text-white flex items-center gap-1.5 flex-shrink-0 transition-opacity hover:opacity-90" style={{ background: '#22c55e' }}>
+            {loading ? <Loader2 className="h-4 w-4 animate-spin" /> : <Play className="h-4 w-4" />} 查询
+          </button>
         </div>
-
+      </div>
+      {/* 次级控件行（时间 / 数据源 / 索引 / 上限 / 另存为 / 历史）// Logan.Li */}
+      <div className="flex items-center gap-2 flex-wrap">
         <TimeRangePicker value={timeRange} onChange={setTimeRange} />
 
         <select value={dsId} onChange={e => setDsId(e.target.value)} className="h-10 px-2 text-xs rounded flex-shrink-0" style={{ background: 'var(--dg-bg-tertiary)', border: '1px solid var(--dg-border)', color: 'var(--dg-text-primary)' }}>
@@ -316,10 +321,6 @@ export function UnifiedQueryPanel({ engine, onRuleCreated }: Props) {
           />
         </div>
 
-        <button onClick={handleRun} disabled={loading || !currentSource} className="h-10 px-4 rounded text-xs font-medium text-white flex items-center gap-1.5 flex-shrink-0 transition-opacity hover:opacity-90" style={{ background: '#22c55e' }}>
-          {loading ? <Loader2 className="h-4 w-4 animate-spin" /> : <Play className="h-4 w-4" />} 查询
-        </button>
-
         <div className="relative flex-shrink-0">
           <button onClick={() => setSaveMenuOpen(!saveMenuOpen)} className="h-10 px-3 rounded text-xs flex items-center gap-1" style={{ border: '1px solid var(--dg-border)', color: 'var(--dg-text-secondary)', background: 'var(--dg-bg-tertiary)' }}>
             <Save className="h-3.5 w-3.5" /> 另存为 <ChevronDown className="h-3 w-3" />